Here's a nice little interview done in Denali at Husky Homestead which includes Tara, Sean and Kristin talking about handling and race preparation:
http://www.alaskapublic.org/2017/02/16/adventure-is-the-profit-the-economics-of-dog-handling/
(I'm sorry, I'm not techie enough yet to figure out how to click on the link and activate it. You'll have to copy and paste it into your web browser).